It sounds like a situation where Ideal can't win. They can't guarantee that the replacements will arrive safely without including the extras, and they've offered to make good. There's no sense in shipping fewer and having a doubly upset customer. Shipping baby chicks is always a risk whoever you buy them from.
You might also consider that they are a member here, before suggesting that you plan on lying to them.
You might also consider that they are a member here, before suggesting that you plan on lying to them.